CVE-2020-26142

medium

Description

An issue was discovered in the kernel in OpenBSD 6.6. The WEP, WPA, WPA2, and WPA3 implementations treat fragmented frames as full frames. An adversary can abuse this to inject arbitrary network packets, independent of the network configuration.

References

https://www.fragattacks.com

https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md

http://www.openwall.com/lists/oss-security/2021/05/11/12

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu

https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63

Details

Source: MITRE

Published: 2021-05-11

Updated: 2021-12-03

Type: CWE-74

Risk Information

CVSS v2

Base Score: 2.6

Vector: AV:N/AC:H/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 4.9

Severity: LOW

CVSS v3

Base Score: 5.3

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

Impact Score: 3.6

Exploitability Score: 1.6

Severity: MEDIUM